1.Made by high purity copper, provided reasonable price 2.Certificate:ISO9001, RoHS, CE 3.OEM and ODM 4.A.W ... products can be made according to your requirement. Excellent quality and reasonable price to provide.We do quotation within ... is showed in detail about this product:SNB5.5-3.5 for #6 screw, 12-10 gauges, B8 ... F7.5mm, E6.8mm, D5.6mm, d3.4mmSNB5.5-6L for 1/4 screw, 12-10 gauges, B12.0mm, L25. ...